Carpet sweeper window



July 16, 1940. C, PARRISH 2,208,516

CARPET SWEEPER WINDOW Filed April 1, 1939 ATToizNEY.

Patented July 16, 1940 PATENT OFFICE CARPET SWEEPER WINDOW Carl C. Parrish, Shelbyville, Ind., assignor to Porter Steel Specialties, a copartnership composed of George M. Parker, Charles M. Youart, and Hester Porter Fuller, Shelbyville, Ind.

Application April 1, 1939, Serial No. 265,379

2 claims.

The object of my invention is to provide an efficient, low-cost, attractive structure by means of which the working of internal parts of a carpet sweeper may be readily observed.

The accompanying drawing illustrates my invention.

Fig. l is a perspective view of a sweeper embodying my invention;

Fig. 2 a plan of the sight opening through the top wall of the sweeper body;

Fig. 3 a plan of the finish ring to register `with said opening;

Fig. 4 a section on line 4-4 of Fig. 1;

Fig, 5 a section on line 5-5 of Fig. l; and

Figs. 6 and 7 fragmentary plans of modified forms of sight openings with the transparentl plates indicated by dotted lines.

In the drawing I0 indicates the top plate or roof of the sweeper body II within which the brushing mechanism is located.

Through plate I0 is formed a sight opening I2 of any desired size and general contour, except that the perimeter of the opening shall embody a plurality of inwardly projecting platforms I3 between each pair of which is a space I4 at the roots of the platforms. The transparent sheet I5 is so contoured as to lie upon the platforms i3 and to fall short of the edges dening spaces Hl. The retaining ring I6 is provided, around its inner periphery, with inwardly projecting spaced tabs Il contoured to cover platforms I3, and between adjacent tabs I 'I is a downturned tongue I8 having a width somewhat less than the extent of space HI and a length suiiicient to permit its free end to be bent outwardly beneath plate ifi, thereby holding the ring I6 and sheet ,'15 firmly in place.

vIt will be readily understood that the general shape and size of the sight opening and the corresponding retaining ring may be wdely varied without departing from my invention. The sight opening may be conveniently formed by a single punching operation and the transparent plate may be of any shape so long as it rests upon the platforms and preferably does not protrude from beneath the outer perimeter of the retaining ring, because the tongues I8 may perforate, or pass through perforations in, the transparent plate I5. I prefer, however, to so contour the transparent plate that, opposite spaces I4, the adjacent 5 edge portions of the sheet will be spaced a tongue thickness from the adjacent portions .of the perimeter of the sight opening so that perforation of the transparent plate will not be necessary but these portions of the edges of the plate will 1() t closely against the downturned tongues I 8 so as to present a neat appearance. l

With this construction, the nal nish may be readily applied to the roof plate I0 either before or after the sight opening is formed therethrough 15 and the transparent plate and the ornamental retaining ring may then be easily applied Without damage to the nish of the upper surface of plate I0, and successfully hiding the platforms I3 which would be unsightly if left exposed.

I claim as my invention:

l. The combination with a hollowbody with a wall having a perforation characterized by a plurality of laterally spaced inwardly projecting platforms, of a transparent plate resting on said platforms, and a retaining ring overlying the transparent plate and having at its inner periphery a plurality of tongues projected through the wall perforation between its platforms and bent outwardly to overlie the inner surface of said wall.

2. The combination with a hollow body with a wall having a perforation characterized by a plurality of laterally spaced inwardly projecting CARL C. PARRISH. 

